Answer:
The correct answer is letter "D": not counted in GDP because they are a non-market activity.
Step-by-step explanation:
The Gross Domestic Product or GDP represents the overall market value of all the goods and services a country produces. It measures the size of the economy and how much it has grown. It is calculates using expenses, level of output, or revenues of the country.
In Kiersten's case, the fruits she grows in her yard are not part of the GDP since she is not involved in any economic transaction.